Haryanti, Devi. “Insomnia During COVID-19 Pandemic”. Jurnal Ilmiah Kesehatan Sandi Husada 9, no. 2 (December 31, 2020): 1111-1116. Accessed April 29, 2024. https://akper-sandikarsa.e-journal.id/JIKSH/article/view/483.